Eggplant (Solanum melongena L.) is a high-value crop, but its seeds often exhibit uneven and delayed germination. To address this, the use of priming agents that promote uniform, rapid germination and enhance seed vigor is being investigated. Rice wash (RW), locally known as hugas bigas, is a common household by-product derived from rinsing rice grains. Anecdotal reports suggest that when used for watering ornamentals, RW promotes better plant growth and flowering. This study aimed to evaluate the potential of RW from different rice cultivars as a seed-priming agent to improve the germination and vigor of eggplant seeds. Seeds were soaked in RW for 12 hours, air-dried for another 12 hours, and germinated on moist filter paper using the top-of-paper method. Daily germination counts were recorded, and germination rate (GR), vigor index (VI), and seedling dry weight (SDW) were determined. Treatments were arranged in a Completely Randomized Design (CRD) with three replications. Data were analyzed using ANOVA, and means were compared using LSD at α = 0.05. Results showed that seeds soaked in white rice wash (WRW), red rice wash (RRW), and brown rice wash (BRW) exhibited earlier germination—observed as early as one day after sowing—and higher germination percentages. In terms of vigor, WRW and RRW treatments resulted in more uniform and faster germination than other rice wash types. Seedling dry weights at seven days after sowing were comparable across treatments. In conclusion, WRW, RRW, and BRW enhanced early, uniform, and rapid germination of eggplant seeds.